Clip-on flash light



FIG. 1 is a perspective view of a clip-on flash light showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view. 

The ornamental design for a clip-on flash light, as shown and described. 